3,273 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 190 funds opening new positions, 1,338 increasing their positions, 1,410 reducing their positions, and 150 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

1% less funds holding

Funds holding: 3,3023,273 (-29)

5% less repeat investments, than reductions

Existing positions increased: 1,338 | Existing positions reduced: 1,410

2.19% less ownership

Funds ownership: 78.17%75.98% (-2.2%)

Holders
3,273
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
46
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.83B
Puts
$2.51B
Net Calls
Net Calls Change

Top Sellers

1 -$863M
2 -$579M
3 -$452M
4
BlackRock
BlackRock
New York
-$291M
5
Goldman Sachs
Goldman Sachs
New York
-$283M
Name Holding Trade Value Shares
Change
Change in
Stake
HI
326
Horizon Investments
North Carolina
$31.7M
MHC
327
Meyer Handelman Company
New York
$31.7M
OSAM
328
O'Shaughnessy Asset Management
Connecticut
$31.6M
RL
329
Ruffer LLP
United Kingdom
$31M
Kovitz Investment Group Partners
330
Kovitz Investment Group Partners
Illinois
$30.9M
GT
331
Glenview Trust
Kentucky
$30.8M
CIA
332
Capital Investment Advisors
Georgia
$30.5M
MGP
333
M&G plc
United Kingdom
$30.5M
BCIM
334
British Columbia Investment Management
British Columbia, Canada
$30.3M
Lido Advisors
335
Lido Advisors
California
$30.3M
Federated Hermes
336
Federated Hermes
Pennsylvania
$30.3M
MAM
337
Martingale Asset Management
Massachusetts
$30.2M
TI
338
Tidal Investments
Wisconsin
$30M
LGF
339
LGT Group Foundation
Liechtenstein
$29.9M
LBA
340
Letko, Brosseau & Associates
Quebec, Canada
$29.7M
BPCE
341
Bank Pictet & Cie (Europe)
Germany
$29.3M
NIM
342
NEOS Investment Management
Connecticut
$29.2M
CA
343
Commerzbank Aktiengesellschaft
Germany
$29.1M
Public Sector Pension Investment Board (PSP Investments)
344
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$29.1M
MML Investors Services
345
MML Investors Services
Massachusetts
$29M
CS
346
Cannell & Spears
New York
$29M
CBU
347
CIBC Bancorp USA
Illinois
$29M
NA
348
NewEdge Advisors
Louisiana
$28.6M
WPC
349
Waters Parkerson & Co
Louisiana
$28.6M
GAM
350
Generali Asset Management
Italy
$28.6M